Galfard, Christophe.  <br/><br/>
George's secret key to the universe: hawking 

 - New York   Scholastic Inc.   2007 
 - 308 
<br/><br/><label>ISBN: </label>978-1-4169-8584-6 
<br/><br/><label>Dewey Class. No.: </label>J G132g